Pump



Patented July 8, 1924.

UNITED STATES Animay n. wIBonG, or BUFFALO,y NEW Yoan.

v PUMP.

Application filed pril 14, 1922. Serial No. 552,822.

To all whom t may concern:

Be it known that ABNER H. Wleone, aV citizen ofthe United States of America, residing at Buffalo, in the county of Erie and State of New York, has invented new and useful Improvements in Pumps, of which the following is a specification.

The object of the invention is to provide Y an efficient construction of pump particuwhich also facilitates replacement and theA maintenance of the valve seat in proper operative condition; and with these objects in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is a side view partly in section of a pump mechanism embodying the invention.

Figure 2 is an enlarged detail sectional view of the piston.

Figure 3 is a similar view of the foot valve. Y

. Figures 4 and 5 are detail sectional views respectively of the members of the check device.

In the illustrated embodiment of the invention the working barrel 10 is fitted with a piston 11 having a cap 12 which carries the valve cage 13 suitably perforated or provided with outlet openings and adapted to retain the spherical or ball valve 14 in proper relation with its-seat. For the reception of the valve there is provided a double seated ring 15 reversible to arrange either of the oppositely disposed seats 16 in position to cooperate with the valve and having an annular peripheral rim 17 engaged between a shoulder 18 of the cap and the end of the working barrel 11, whereby it is firmly clamped and held in position. The pump rod 19 is connected by a suitable coupling 2O with the cage or cap 13 and arranged at the bottom of the working barrel and connected Ywith the suction pipe 21 is a foot valve cas-ing 22 consisting of the collar 23 and the cap 24C forminga suitable valve cageAv for the spherical valvel 25. l The valve cooperates as described in relation tothe operating. valveV with a double faced seating ring 25 having a rim 26 which is lclamped between a shoulder 27 of the cap 24 and the end of the collar 23 in a manner similar to that' described with relation to the working valve-mechanism.

Located inV a sleeve 28 fitted to the upper end of the working barrel is a checking device consisting of a collar or seating member 29 having threaded engagement at its lower end with the upper end of the working barrel and a disk or valve member 30 loosely fitted upon the pump rod 19 and free to move on said rod between the upper end of the seating member and a stop formed by inwardly directed lugs 31 on the sleeve 28. The seating member is provided with passages or channels 32 to permit of the passage of liquid therethrough and the disk member is of less diameter than the interior of the sleeve to permit of the passage of fluid around the periphery thereof, said disk member having an annular cavity 33 in its upper face, serving to catch any particles of sand which may settle through the liquid which remains in the pump tubing above the disk when the operation of the pump ceases,

and prevent the dropping of the same into.

the working barrel where it is subject to lodgment between the piston and the walll of the barrel and hence to an injurious scratching of either thepiston or the barrel.

The rod 19 has reciprocatory sliding movement with relation to the seating member 29 when the pump is in operation. The valve member 30 has sliding movement upon the rod 19 during the operation of the pump but the sliding movement of the valve member 30 is limited by the seating member 29 and the lugs 31. Therefore, the rod 19 may reciprocate with longer strokes of reciprocation than the corresponding movement of the valve member 30. The lugs 31 prevent the valve member 30 from moving too far' away from the seating member to prevent the said valve member from seating promptly upon said member 29 during the relatively long strokes of reciprocation of the rod 19. In other words, the presence of the valve member 30 upon the rod 19 does not limit the movement of the rod in that the movement of the valve member 30 which is slidably mounted upon the rod is limited by the fixed stops and the adjustable seating member.

The detachability of the sleeve 28 from the Working barrel permits of the cleaning or replacement of the check device should there be an objectionable accumulation of solid material adjacent thereto, and as Will be obvious when the operation of the piston is discontinued the disk member of the check device Will drop into contact With and Will seat upon the upper end of the seating member and thus entirely cut olf communication between the pump tubing and the Working barrel.

Having described the invention, what is claimed as new and useful is A pump comprising a Working barrel, a rod mounted therein and carrying a. Working valve, a sleeve threaded the upper end of the barrelv and slidably receiving the rod, a seating member threaded Within the upper end of the barrel and having a portion disposed above the upper end edge of the barrel, a piston rod slidably received in the seating member, a disk slidably mounted upon the pistony rod and housed Within the sleeve, stops carried by the sleeve and spaced above the'seating member and disposed in thel path of movement of the disk, said disk being provided at its upper -side with an annular cavity, the parts being so arranged that the piston rod may have unlimited sliding movement with rela-tion to the disk.

In testimony whereof he aliixes his signature.

ABNER H. WIBORG. 

